(a) Right of Appeal. Any party may seek mandamus review of an order appointing a guardian ad litem or directing a guardian ad litem's participation in the litigation. Any party and a guardian ad litem may appeal an order awarding the guardian ad litem compensation.
(b) Severance. On motion of the guardian ad litem or any party, the court must sever any order awarding a guardian ad litem compensation to create a final, appealable order.
(c) No Effect on Finality of Settlement or Judgment. Appellate proceedings to review an order pertaining to a guardian ad litem do not affect the finality of a settlement or judgment.

2. This rule does not apply when the procedures and purposes for appointment of guardians ad litem (as well as attorneys ad litem) are prescribed by statutes, such as the Family Code and the Probate Code, or by other rules, such as the Parental Notification Rules.

3. The rule contemplates that a guardian ad litem will be appointed when a party's next friend or guardian appears to have an interest adverse to the party because of the division of settlement proceeds. In those situations, the responsibility of the guardian ad litem as prescribed by the rule is very limited, and no reason exists for the guardian ad litem to participate in the conduct of the litigation in any other way or to review the discovery or the litigation file except to the limited extent that it may bear on the division of settlement proceeds. See Jocson v. Crabb. 133 S.W.3d 268 (Tex. 2004) (per curiam). A guardian ad litem may, of course, choose to review the file or attend proceedings when it is unnecessary, but the guardian ad litem may not be compensated for unnecessary expenses or services.

4. Only in extraordinary circumstances does the rule contemplate that a guardian ad litem will have a broader role. Even then, the role is limited to determining whether a party's next friend or guardian has an interest adverse to the party that should be considered by the court under Rule 44. In no event may a guardian ad litem supervise or supplant the next friend or undertake to represent the party while serving as guardian ad litem.

5. As an officer and advisor to the court, a guardian ad litem should have qualified judicial immunity.

6. Though an officer and adviser to the court, a guardian ad litem must not have ex parte communications with the court. See Tex. Code Jud. Conduct, Canon 3.

7. Because the role of guardian ad litem is limited in all but extraordinary situations, and any risk that might result from services performed is also limited, compensation, if any is sought, should ordinarily be limited.